Ventilator attachment for water-closets



Jan. 10, 1928.

F., M. DRAPER VENTILA'IOR ATTACHMENT FOR WATER CLOSETS Filed March 9,1927 ira/962 Patented Jan. 10, 1928.

FRANCIS M. DBAPER, OF DANA, INDIANA.

VENTILATOR ATTACHMENT FOR WATER-CIiOSETS.

Application filed March 9, 1927. Serial No. 173,974.

The present invention relates to improvements in ventilators and hasreference more particularly to a device for use in connection with awater closet.

One of the import-ant objects of the present invention is to provide aventilator attachment of the above mentioned character which willwithdraw the gases from a water-closet bowl but suction and dischargethe same through a suitable point outwardly from a house.

A further object of the invention 1s to provide a ventilator attachmentof the above mentioned character wherein means s provided for creating asuction in the air pipe for removing impure gases from the water closetbowl, means being provided for normally rendering the suction fan-operatng motor inoperative, additional means belng provided whereby the motorWlll be operated when the seat of the bowl is occupied.

A further and important object of the present invention is to provide aventilator attachment for water closets of the above mentioned characterwhich will at all ,times be positive and eflicient in its operation, thesame being further simple in its constructlon, inexpensive, strong anddurable and further well adapted for the purposes for which it isdesigned.

Other objects and advantages of this invention will become apparent fromthe course of the following description.

In the accompanying drawing forming a part of this specification and inwhich like numerals designate like parts throughout the same 2 Figure 1is a top plan view of my improved ventilator attachment showing the sameattached to a water closet bowl, the hinged seat being removed and thepintles for said seat being shown in section and Figure 2'is a sideelevation, parts of the device being shown in section.

In the drawing, wherein for the purpose of illustration is shown thepreferred embodiment of my invention, the numeral 1 designates a watercloset bowl of a conventional construction, the same having associatedtherewith the usual seat 2 which is hinged at its rear end on the usualpintles 3 which extend through the rear flanged portion 4 of the watercloset bowl in the manner well known in the art.

My improved ventilator attachment comprises an enlarged suction nozzle 5which is adapted for disposition on the flange portion l of a watercloset bowl between the pintles 3 and for the purpose of rigidlysecuring the nozzle in position on the bowl, I provide the attachingflanges 6 through which the pintl'es 3 extend in the manner clearlyillustrated in Figure 1.

This nozzle is substantially flat and also rectangular and the forwardinlet end thereof is disposed adjacent the inner peripheral edge of thebowl at the rear end thereof in the manner as also clearly illustratedin Figure l.

The top of this nozzle is cut away and arranged therein is the plate 7,the same being hinged to the inner edge of the cut-away portion of thenozzle as at 8. The'purpose of this hinged plate 7 will be hereinaftermorefully described.

The nozzle 5 tapers gradually towards the rear end and terminates in thelaterally disposed suction pipe 9 and communicating with the outer endof this pipe is a suction fan 10 mounted on drive shaft 11 of a suitable motor 12. It is of course understood that a suitable housing orcasing such as is shown in 13 is provided for the suction fan and also asuitable housing is provided for the motor 12 as illustrated at 14.

Extending from the outer end of the motor housing 14 is the dischargeair pipe 15 which leads out through the house or to any other suitablepoint remote from the water closet. It is also to be understood that thefan casing 13 as well as the motor housing 14 are supported in anyappropriate manner.

The motor 12 for controlling the operation of the suction fan 10 iscontrolled by a suitable circuit maker and breaker, the structure whichwill now be more specifically described. A contact 16 is arranged in thebottom of the nozzle 5 adjacent the inlet end thereof and cooperatingwith said contact is a similar contact 17 arranged on the under side ofthe hinged plate 7. It is of course to be understood that these contactsare electrically connected to the motor by suitable wiring such as isshown at 18.

The contacts are normally held out of engagement with each other so thatthe circuit tothe motor is open through the medium of the expansiblecoil springs 19 which are interposed between the bottom of the nozzle,the forward edge portion of the hinged plate 7.

The cover plate 7 is disposed beneath the rear portion of the hingedseat 2 and normally when the seat is swung upwardly to the positionshown in Figure 2, the springs 19 maintain the contacts spaced apart andthe ventilator attachment is inoperative.

However,.when the seat 2 is swung downwardly on the bowl, the rearportion of the seat will engage the hinged plate 7 and move the samedownwardly against the tension of the springs 19 thus moving the contact17 intoengagement with the contact 16 wherebythe circuit to the motor 4will be closed and the suction fan 10 will be operated for creating asuction in the pipe 9 so that the gases and impurities may be drawn fromthe bowl 1 into the nozzle 5 and discharged out through the 'pipe 15.The suction fan 10 will operate as long as the contacts are inengagement with each other and as soon as the seat is swung upwardly,and out of engagement with the plate 7, the springs will automaticallyswing the hinged plate 7 upwardly so that the contact 17 is moved out ofengagement with the contact 16 thus breaking the circuit to the motor.

It will be seen from the foregoing description that I have provided ahighly novel yet simple ventilator attachment for a water closet bowlwhich is of such construction as to permit the same to be readily andeasily installed without necessitating any material changes of the watercloset bowl and will at all times be positive and efiicient in itsoperation.

While I have shown the preferred embodiment of my invention, it is to beunderstood that various changes in the size, shape and arrangement ofparts may be resorted to without departing from the spirit orsacrificing any of the advantages of the appended claims. I p I claim 1.In combination a water closet bowl, and the usual hinged seat therefor,a suction nozzle supported on the rear portion of the bowl beneath thehinged seat, the top of the nozzle being open,-a suction pipe extendingfrom the nozzle, a motor operated suction fan arranged in said pipe, amovable member arranged in the open top of the nozzle, co-actingcontacts carried by said movable member and the suction nozzlerespectively for closing the circuit to a motor for operating thesuction fan 'when the seat is swung downwardly on the bowl and themovable member is moved downwardly, and a discharge pipe connected tothe suction pipe.

2. In combination, a water closet bowl, and the usual hinged seattherefor, a suction nozzle supported on the rear portion of the bowlbeneath the "hinged seat, the top of the nozzle being open, a suctionpipe extending from the nozzle, a motor operated suction fan arranged insaid pipe, a movable member arranged in the open top of the nozzle,co-acting contacts'carried by said movable member and the suctionnozzlerespectively for closing the circuit to a motor for operating thesuction fan when the seat is swung downwardly on the bowl and themovable member is moved downwardly, a discharge pipe connected to thesuction pipe, and means for normally holding the contacts out ofengagement with each other when the seat is swung upwardly.

3. In combination with a water closet bowl, and the usual hinged seattherefor, a suction nozzle supported on the rear portion of the bowl,beneath the hinged seat, the top of the suction nozzle being open, asuction pipe extending from the nozzle, a motor operated suction fanarranged in said pipe, a discharge pipe communicating with said suctionpipe, a hinged plate arranged in the open top of the nozzle, co-actingcontacts carried by the nozzle and thehinged plate respectively,resilient means interposed between the bottom of the suction nozzle andthe forward edge ortion of the hinged plate for normally ho ding theplate in a raised position whereby thecontacts are out of engagementwith each other when the seat is swung to an upward position, said platebeing adapted to move downwardly and cause the contacts to be inengagement with each other for closing the circuit to the motor when theseat is swung downwardly into engagement with the bowl.

In testimony whereof, I affix my signature.

FRANCIS M. DBAPER.

